39873
domain: N
Appears in sequences
- Number of proper divisors of n-th even perfect number.at n=23A133033
- Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1100-0100-1111 pattern in any orientation.at n=11A146653
- Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 01000-11111-01000 pattern in any orientation.at n=16A147021
- Number of n X n binary arrays with all ones connected only in a 1000-1000-1100-0111 pattern in any orientation.at n=8A147099
- Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1000-1000-1100-0111 pattern in any orientation.at n=18A147101
- Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1000-1000-1100-0111 pattern in any orientation.at n=19A147101
- T(n,k)=Number of nXk 0..1 arrays with exactly floor(nXk/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.at n=58A222509
- Number of 4Xn 0..1 arrays with exactly floor(4Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.at n=7A222512
- Total number of modes in all partitions of n.at n=39A372542